{"references": ["1. Lund VJ. The complication of sinusitis in: Mackay IS, Bull TR (Eds.), Scott Brown Otolaryngology Rhinology. Butterworth Heinemann, Edinburg. 1997.pp.13/11", "2. Singh NP, Garg S, Kumar S, Gulati S. Multiple cranial nerve palsies associated with type 2 diabetes mellitus. Singapore Med J. 2006;47(8):712-5", "3. S Yen, R Foroozon. Orbital apex syndrome. Curr Opin Ophthalmol. 2004;15(6):490-8.", "4. Bhansali A, Bhadada S, Sharma A, Suresh V, Gupta A, Singh P, et al. Presentation and outcome of rhino orbital-cerebral mucormycosis in patients with diabetes. Postgrad Med J. 2004 Nov;80 (949):670-4.", "5. Nwaorgu OGB, Awobem FJ, Onakoya PA, Awobem AA. Orbital cellulitis complicating sinusitis: a 15 year review. Nigerian Journal of Surgical Research. 2004;6(1-2):14-16", "6. Rao SP, Kumar KR, Rokade VR, Vikram K, Chitra P. Orbital apex syndrome due to mucormycosis caused by Rhizopus microsporum. Indian J Otolaryingol Head Neck Surgery. 2006;58(1):84-87.", "7. Parfrey NA. Improved diagnosis and prognosis of mucormycosis. A clinicopathologic study of 33 cases. Medicine (Baltimore). 1986; 65:113-23.", "8. Hadzri MH, Azarisman SM, Fauzi AR, Kahairi A. Invasive rhinocerebral mucormycosis with orbital extension in poorly-controlled diabetes mellitus. Singapore Medical Journal. 2009;50(3):e107-9."]}

We report a case of sudden monocular visual loss with drooping of upper eyelid in a 65 year old diabetic patient. Examination revealed complete ophthalmoplegia with optic neuropathy and paranasal sinusitis. Early diagnosis and prompt management with radical debridement of sinuses along with antifungal therapy helped in preventing further complications.